Currently in Creo 4.0 M030, when you want to change the attachment reference of a GTOL the entire GTOL frame moves as well when using "Change Reference". I don't want my frame location moving, i've already taken the time to place where I want it. If I want the frame location to move I can move it just by selecting and dragging. Unnecessary mouse clicks happening to change the leader reference.
"Edit Attachment" will break model dependency of a model based GTOL.